Building construction.



M. DAVIS.

BUILDING CONSTRUCTION.

APPLICATION FILEID'JUNEZZI I916.

Patented Apr. 3, 1917.

MEYER DAVIS, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR T ASBESTOS PROTECTED METAL COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF PENNSYL- Vanna. p

BUILDING CONSTRUCTION.

Specification of Letters Eatent.

Patented 1 11. a, 1e11,.

, Application filed June 22, 1916. Serial No. 105,280.

To all whom it may concern I Be it known that I, MEYER DAVIS, a citizen of the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented an Improvement in Building Construction, of which the following description, in connection with the accompanying drawings; is a specification, like characters on the drawings representing like parts. a

This invention relates to a building construction embodying overlapping metal sheets or plates and more particularly to the roof and floor constructions of a reinforced concrete building embodying v overlapping corrugated metal sheets or plates. The invention has for its object to provide means lid as will be described for firmly securing the overlapping metal sheets or plates together in a minimum time and with minimum labor, and for firmly securing a retaining clip for the metal reinforcement for the concrete, in such manner as will retain the metal'reinforcement in its proper or desired position.

To this end, I employ a bolt provided with a head and a substantially long shank having a threaded cylindrical portion and a substantially long conical or pointed end, which latter enables the metal plates to be easily punctured by the bolt'with a rivet set or other tool in the hands of a workman on the job. The bolt is firmly secured to one metal will be pointed out in the claims-at the. end

of this specification. I

Figure 1 represents a'gsutficient portionof a building construction'embodying the in.--

vention to enable it to be understood.

Fig. 2, a section ontheuline 2-2,'Fig. 1, and

Fig. 3, detail of the retaining clip shown 1n]Bi.1., V a 1 .1

Re erring to the drawing, a, b, re resent two overlapping corrugated 'metal ates or sheets, which form'part of a building such, for instance, as the roof thereof, said plates or sheets being. supported by purlins 0. Provision is made in accordance with this invention for firmly fastening the overlapping metal plates a, 6, between the purlins c, at and to this end,'-I employ a bolt comprising secured on the bolt by a seca head 10, a substantially long threaded cylindrical shank 12 and a substantially long pointed or conical free end 13, which latter provides the bolt with a puncturing point,

which permits the metal plates to be drawn throughwith a suitable tool, such as a rivet sellz), 1n the hands of a single workman on the 10 v In operation the bolt with the head 10 on the inner side of the metal plate a is drawn through said plate near the center of the portion of the last corrugation between the purlins, and is then firmly secured to the plate a by the nut 14, which is turned up on the threaded portion 12 of the shank of the bolt and engaged with plate a.

The metal plate 6 is then placed in position so that its lip or side overlaps the plate the upper side of the a and rests on the pointed end 13 of the'bolt,

whereupon the plate I) is drawn or forced over the pointed end of the'bolt with a rivet set or other tool in the hands of the workman. The center clip 15 for the metal reintends over the metal-reinforcement 16 and servesto aline themetal reinforcement and confine the same against abnormal lateral displacement v The pointed end 13 of the bolt enables the workman on the'roof to quickly and easily 1 force the plates a, I over the bolt and thus secure them together between the purlins a in a minimum time and with the least posbolt affords means for securing the'retaining clip in position between the pu'rlins.

013,111 131 v 4 1. In a building construction, in combinacurved or bent outer portion 20, which e'xv 1%" sible labor, while at thesame time the said on one side of said metal plate and having,

. its shank provided with a threaded portion and with a, pointed end which pro ect beyond'the 'otherside of said plate, a nut on said threaded portion of said shank cooperating with said head to secure the bolt .to said plate, a second metal plate overlapping the first-mentioned plate and separate therefrom by said nut and through Which the pointed end and shank of said bolt are extended, a clip on said bolt having one end bearing on the second metal plate and having its other end extended beyond the edge of the second-mentioned plate, and a nut on the threaded shank of the bolt to secure the said clip and the second-mentioned plate in fixed relation to the first-mentioned plate.

2. In a building construction, in combination, a metal plate, a bolt extended through said metal plate and having a head located on one side of said metal plate and having its shank provided With a threaded ortion and with a pointed end Which pro ect beyond the other side of said plate, a nut on said threaded portion of said shank cooperating With said head to secure the bolt to said plate, a second metal plate overlapping the first-mentioned plate and separated therefrom by said nut and through which the pointed end and shank of said bolt are extended, and a nut on the threaded shank of the bolt to secure the second-1nentioned plate in fixed relation to the first-mentioned late. p In testimony whereof, I have signed my name to this specification.

MEYER DAVIS. 

